Programming - Wrapper Classes
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| 7. |
_________________ is used to get the capacity of a list i.e. retrieving the number of objects contained in it.
|
| A. |
size() |
B.
|
set() |
|
C.
|
stop()
|
D.
|
remove()
|
|
Answer: Option A
Explanation:
| size() is used to get the capacity of a list i.e. retrieving the number of objects contained in it. |
|
| 8. |
______________________ is used to remove an object from a particular position specified by a index value.
|
| A. |
size() |
B.
|
set() |
|
C.
|
stop()
|
D.
|
remove()
|
|
Answer: Option D
Explanation:
| remove() is used to remove an object from a particular position specified by a index value. |
|
| 9. |
__________________ method is used to o replace an object from a particular position specified by a index value.
|
| A. |
reset(int, object) |
B.
|
set(object,int) |
|
C.
|
set(int, object)
|
D.
|
reset(object,int)
|
|
Answer: Option C
Explanation:
| set(int, object) method is used to o replace an object from a particular position specified by a index value. |
|
| 10. |
The wrapper classes are part of the ______________________ package
|
| A. |
java.lang |
B.
|
java.util |
|
C.
|
java.io
|
D.
|
java.sql
|
|
Answer: Option A
Explanation:
| The wrapper classes are part of the java.lang package |
|
| 11. |
The _________________ method is an instance method, because it is called through an instance of the class an Integer object.
|
| A. |
FloatValue() |
B.
|
setValue() |
|
C.
|
resetValue()
|
D.
|
intValue()
|
|
Answer: Option D
Explanation:
| The intValue() method is an instance method, because it is called through an instance of the class an Integer object. |
|
| 12. |
The ______________ class includes both instance methods and class methods.
|
| A. |
Integer |
B.
|
String |
|
C.
|
inner
|
D.
|
abstract
|
|
Answer: Option A
Explanation:
| The Integer class includes both instance methods and class methods. |
|
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